Why bother researching when these nice forum people will figure everything out for me?

I think most people are too lazy to take the initiative. They ask here first hoping there is a quick fix. They will then research the problem when given links to look at.

I don't mind occasionally having to reinvent a wheel; I don't even mind using someone's reinvented wheel occasionally. But it helps a lot if it is symmetric, contains no fewer than ten sides, and has the axle centered. I do tire of trapezoidal wheels with offset axles. --Joseph Newcomer